Matter, Elements, and Compounds. Matter: Anything that takes up space and has mass. There are 92 naturally occurring elements, of these 25 are essential.
Chapter 2 Notes The Chemical Context of Life. Concept 2.1 Organisms are composed of matter: anything that takes up space or has mass Element: a substance.
Carbon Compounds in Cells. What is Organic Chemistry? Is the chemistry that deals with element carbon and one or more elements. All living organisms are.
Chapter 2: The Chemical Context of Life. Organisms are natural systems to which basic concepts of chemistry and physics apply. One of the main themes.
